Track/ Extrovert question...

YrkViper

New member
Joined
Nov 2, 2003
Messages
173
Age
53
Location
York, PA
I am looking at going to a 141 or 144 inch track.

Can I go with a 3.00 pitch and use the 8t extrovert drivers from a doo?

This is for a viper...

Are the shaft dimensions the same from the doo and the viper?

Thanks!
 
i don't think the 3 pitch 8t drivers will work , i think the 3pitch 7t ones are about the same diameter as a 9tooth 2.52. the shaft size on the doo's depends on the year,if the 3' pitch drivers came on the doo from the factory it probally has a much larger shaft size like 2.5''- 3". if there off an older doo they could have a 1.25" shaft size or the 1.125" shaft like your viper,it really depends on the year and model of the doo.
 
7 tooth 3.00" pitch diameter = 6.69"
8 tooth 3.00" pitch diameter = 7.64"
8 tooth 2.52" pitch diameter = 6.42"
9 tooth 2.52" pitch (stock) diameter = 7.22"

To find diameter in inches, take the number of teeth x pitch (in inches) and divide by 3.14.
 


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